turkeys don't have enough blood in them to leave a good blood trail...
Your kidding me right? Blood tracking might be the only way you find some birds. We followed one this past fall that would make you think we hit an elk.
I concur with Jeff, the arrow in the bird can stop him from flying, you then may have to blood track.
But also like was said, you put the right shot on them, they don't leave eyesight.
Other than the blood thingy, great advice throughout.